Apios delavayi var. gracillima (Dunn) Bo Pan

Zhang, Fan, Feng, Si, Zhou, Jianjun, Zhang, Rong, Liu, Linhan, Yang, Chengzi, Yu, Xunlin & Pan, Bo, 2018, Apios chendezhaoana (Fabaceae), an overlooked species and a new combination from China: evidence from morphological and molecular analyses, Phytotaxa 371 (1), pp. 1-16 : 10

publication ID	https://doi.org/ 10.11646/phytotaxa.371.1.1
persistent identifier	https://treatment.plazi.org/id/03EA87DF-FF58-FFE5-D281-A523FDC9FAF9
treatment provided by	Felipe
scientific name	Apios delavayi var. gracillima (Dunn) Bo Pan
status

Treatment

Apios delavayi var. gracillima (Dunn) Bo Pan View in CoL (Ñṻ), stat. nov.

Basionym : Apios gracillima Dunn (1903: 488–489) View in CoL . syn. nov.

Type:— CHINA. Yunnan: Mengtze, 6000 ft, 14 September, A. Henry 9828, Barcode K000262506 (lectotype K! here designated).

Apios gracillima is unique by its linear to narrow oblong or lanceolate leaflets with rounded apex, and 2–4 purple flowers in each inflorescence. It is very rare and scattered, although the name A. gracillima has always been used for specimens of A. delavayi var. pteridietorum . All the specimens including the type are collected from the Honghe River drainage. Due to its similarity with A. delavayi , we reduce A. gracillima to a variety of A. delavayi .

Distribution and habitat: —This variety is only found from the Honghe River drainage, Yunnan province, at ca. 1800 m above sea level.

Phenology: —Flowering from September to October; fruiting unknown.

Specimen examined:— CHINA. Yunnan: Chuxiong, Baomanjie, Lianwangba, 1800 m, 18 September 1958, Shu-Qiong Huang 11 (KUN). Menghua, top of Lung Yu Mt., 5 September 1935, McLaren 111 (E). Yao-chou, summit of a mountain, October, McLaren F66 (E).